<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>2_state的简写方式</title>
</head>

<body>
    <div id="test"></div>
    <script type="text/javascript" src="../js/react.development.js"></script>
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <script type="text/javascript" src="../js/babel.min.js"></script>
    <script type="text/babel">
        // 1. 创建组件
        class Weather extends React.Component {
            // 初始化状态
            state = {
                isHot: false,
                wind: '微风'
            }
            render() {
                const { isHot, wind } = this.state;
                return <h1 onClick={this.changeWeather}>今天天气很{isHot ? '炎热' : '凉爽'}，{wind}</h1>
            }
            // 自定义方法——要用赋值语句+箭头函数、
            changeWeather = () => {
                const { isHot } = this.state;
                this.setState({ isHot: !isHot })
            }
        }
        // 2. 渲染组件到页面
        ReactDOM.render(<Weather />, document.getElementById('test'))
    </script>
</body>

</html>